Male fiberglass mold & finished surface

[erikhaha]

Ok, I have made a male mold that I am going to fiberglass(see attached picture). My question is what is the best way, or tips/tricks that you guys have used to reduce fairing once the part is glassed? I hate sanding.

I plan on glassing it with polyester resin, used for surfboards, because I have a lot of it and it is fairly cheap. I also have a lot of chopped-strand mat that will be used. Not sure the weight, but it is approximately 1/16" thick. After 2-3 layers of fiberglass I want to use gelcoat for the finish.

I have never made a fiberglass part from a mold before, but I have researched it and I am pretty sure I am going about this the correct way, I just want to minimize the finishing sanding.

Thanks

[Roger Moren]

If your male mold is fair the surface should be fair. But you are going the have to fair and sand. I would recommend, mirco balloons, "spheres" not talc if you don't like sanding, they sand easier. It looks like a small hull so there would also be a weight saving. Get a mask.

For what it is worth.